Jailbreak Apple TV 4.4.3 (9A4051) with Seas0nPass (Tethered Only)
Yesterday Apple had seeded iOS 4.4.3 (9A4051) to second generation Apple TV 2G. The update was not major update but it did added a new feature which is Netflix support in Mexico, the update also addresses an issue in which audio may not play through the optical port when the TV is turned off. You will lose you exiting tethered jailbreak If you have already update your Apple TV 2G to iOS 4.4.3. But thanks to Limera1n bootrom exploit it is not possible for Apple to completely block jailbreak from Apple TV 2G.
Firecore team has updated their Apple TV 2G jailbreak tool, Seas0nPass to support jailbreak on Apple 2G iOS 4.4.3 (9A4051) However you must know that this is tethered jailbreak only and untethered jailbreak is not possible at the moment until a exploit is found in iOS 5.0.1/4.4.3.
You can follow our complete step by step guide on how to jailbreak Apple TV 2G 4.4.3 here.